300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082 Fax: 508-823-8181 WWW.ASTRODYNE.COM
Rev. 2/02
CostCutter Isolated and Regulated
5-12 Watt SMD type DC/DC Converters
2 : 1 Input Range
High Efficiency
Surface Mount (SMD)
1500V Isolation
Remote ON/OFF
Parallel Operation
Alarm Signal Output
EN60950 & UL1950 Approved
EPH
Series
Contact
Factory
for
High Volume
Pricing
MODEL SELECTIONS
Unit measures 1.1”W x 1.48”L x 0.34”H
Output Output Input Model Price
Voltage Amps Range Number 1 25
SINGLE OUTPUT
1.2 VDC 3.5 36-75 VDC EPH-1R2035 $46 $43
1.3 VDC 3.5 36-75 VDC EPH-1R3035 $46 $43
1.5 VDC 3.5 36-75 VDC EPH-1R5035 $46 $43
1.8 VDC 3.0 36-75 VDC EPH-1R8030 $46 $43
2.0 VDC 3.0 36-75 VDC EPH-2R0030 $46 $43
2.1 VDC 3.0 36-75 VDC EPH-2R1030 $46 $43
2.5 VDC 3.0 36-75 VDC EPH-2R5030 $46 $43
3.3 VDC 3.0 36-75 VDC EPH-3R3030 $46 $43
5.0 VDC 2.0 36-75 VDC EPH-5R0020 $46 $43
5.2 VDC 2.0 36-75 VDC EPH-5R2020 $46 $43
12 VDC 0.8 36-75 VDC EPH-12R008 $46 $43
300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082 Fax: 508-823-8181
WWW.ASTRODYNE.COM Rev. 2/02
CostCutter Isolated and Regulated
5-12 Watt SMD type DC/DC Converters
MECHANICAL DIMENSIONS
All specifications are typical at nominal input, full load, and 25DegC
unless otherwise noted
INPUT SPECIFICATIONS
Input Voltage, Nominal 48Vdc
Input Voltage Ranges 36-75 Vdc
Maximum Input Voltage 75 Vdc
OUTPUT SPECIFICATIONS
Voltage and Current See Selection Chart
Preset Accuracy +5%, -3% typ
Load Regulation 20% to FL
5.0, 5.2 & 12 (V) +/- 2%
1.8 & 3.3 (V) +/- 3%
1.5, 2.0, 2.1, & 2.5 (V) +/- 4%
1.2 & 1.3 (V) +/- 5%
Line Regulation +/- 1%
Temperature Coefficient 0.02%/DegC
Ripple/Noise (Pk-Pk, typ) 30mV
Overvoltage Protection 115-135% *
Short Circuit Protection Continuous, Re-Start to Reset
GENERAL SPECIFICATIONS
On/Off Control (Ref to - Input pin)
Voltage level 1.5-2.5 Vdc=ON
Zero Vdc or GND=OFF
Shutdown Idle Current 3.9-4.15 mA @ 36-75 Vdc in
Input-Out Isolation 1500VDC (48V)
In/Out Capacitance 5000pF
Efficiency 82%, typ
Switching Frequency 300 kHz
ENVIRONMENTAL SPECIFICATIONS
Oper. Temperature -40 to +85 DegC(FL-No Derate)
Storage Temperature -40 to +125 DegC *
Maximum Case Temp 110 DegC *
Input Fusing 2A slow blow @ 48Vdc
MTBF 3.7 MHrs
MIL-HDBK-217, 40 DegC
Astrodyne products are not authorized or warranteed for
use as critical components in life support systems,
equipment used in hazardous environments, nuclear
controls systems, or other mission-critical applications.
* These are stress ratings. Exposure of the devices to any of these conditions
may adversely affect long term reliability. Proper operation under conditions other
than the standard operating conditions is neither warranteed nor implied.
PHYSICAL SPECIFICATIONS
Case Material Non-Conductive Black Plastic
Construction Fully Encapsulated
Surface Mount
Weight 0.64 oz, (18g)
Pin # Designation
1 -Vin
2 +Vin
3 Test
4 Remote
5 NoPin
6 -Vout
7 +Vout
8NC
9 Alarm
10 PECout
11 PECin
12 STARTin
13 STARTout
14 OPPS
